It's chaotic, it's entertaining, it's fun. It lacks replayability, variety, and length/content. It is an adaptation of certain very popular mobile games, although I can't know how much these influenced you (if at all), therefore I would value it as a neutral observation.
(Spoilers below)
I will attribute points for worldbuilding, narrative writing, and thematic choices through literary devices. The music and scenery juxtaposes the grim destruction being ensued. The horrific elements of narrative are foreshadowed through language used, i.e., the term "sacrifice" serves as a precursor for the underlying purpose of the players action. This element is reinforced and embellished by the surreal illustration of a giant smiling head which speaks ominously as it consumes that which you present it with (the souls and carcuses of the masses, their homes and vehicles, the very fibres of their economic, social, and cultural domains).